CN101860254B - Vehicle inverter for powering consumer electronic devices - Google Patents
Vehicle inverter for powering consumer electronic devices Download PDFInfo
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- CN101860254B CN101860254B CN2010101389911A CN201010138991A CN101860254B CN 101860254 B CN101860254 B CN 101860254B CN 2010101389911 A CN2010101389911 A CN 2010101389911A CN 201010138991 A CN201010138991 A CN 201010138991A CN 101860254 B CN101860254 B CN 101860254B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/10—Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/483—Converters with outputs that each can have more than two voltages levels
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
Abstract
An inverter for inverter DC power, such as but not limited to the type commonly employed in vehicle power systems, in to AC power, such as but not limited to the type commonly employed to power consumer electronic devices. The inverter may be configured to electrically isolate primary and secondary stages without requiring separate primary and secondary stage power supplies.
Description
Technical field
The present invention relates to operate the inverter that low-voltage dc power supply is reverse into the type of AC power, described DC power supply is such as but not limited to the type of normal operation in vehicles power-supply system, and described AC power enough is the consumer-elcetronics devices power supply.
Background technology
In recent years, the 120Vac/230Vac power supply that is used for the consumer-elcetronics devices of the vehicles has become the foundation characteristic in the auto industry.In some applications, the power supply of 120Vac/230Vac power supply is from 12Vdc vehicles storage battery.Usually 12Vdc is at first boosted to more high-level DC voltage, 170Vdc/340Vdc for example, and then it is reverse into the sine wave AC voltage through revising.The rated power of this 120Vac/230Vac power supply can reach one kilowatt.Dispose for the typical circuit that is used for inverter 100 shown in Fig. 1.
In Fig. 1, boost converter 102 is shown as the push-pull type transducer, have one of full-bridge rectifier or center tap rectifier 104, and output inverter 106 is shown as the H bridge.Transducer 102 and inverter 106 each self-contained switching device 108,110, these switching devices must be selectively activated and deexcitation in the mode that is fit to boost with inversion direct current power supply 112.The push-pull type controller that separates and H type bridge controller 114,116 can be used for exporting time varying signal, optionally to activate and the switching device 108,110 of deexcitation transducer 102 and inverter 106.These time varying signals can be fed to drive circuit 120,122, and these drive circuits are coordinated selecteed one or more activation and deexcitation in the switching device 108,110 successively.
Importantly, the accessory power supply 126 of two separation, 128 is used for controller 114,116 separately.One of them power supply 126 is for example linear regulators of voltage regulator, and this adjuster is adjusted to battery tension the voltage that is suitable for as controller 114 and driver 120 power supplies.Wherein another power supply 128 is isolated switched-mode power supply (SMPS), and this SMPS keeps apart the second level of inverter from elementary.Can also comprise a power transformer (not shown), keep apart with respect to being provided to elementary power sourced electric ground to promote the power supply that will be provided to gate drivers 122 and controller 116.
Use SMPS128 electrically to keep apart from secondary elementary, this is conducive to prevent the secondary interference that is subjected to primary operation of higher pressure.Yet owing to used the assembly that has larger rated power as power transformer, the isolated SMPS size of design is large and relatively costly.
Summary of the invention
The invention provides a kind of inverter that is used in the vehicles with DC power supply, this inverter comprises: elementary, this is elementary to have switching device, and this switching device can operate in response to primary control signal the first direct current output of DC power supply is boosted to the output of the second direct current; Secondary, this is secondary to have a switching device, and this switching device can operate in response to secondary control signal the output of the second direct current is reverse into and exchange output; The primary control device, this primary control device is configured to export primary control signal, and primary control signal is used to control elementary switching device so that the output of the first direct current is boosted to the output of the second direct current; Secondary controller, this secondary controller is configured to export FM signal, and the secondary switching device of this FM signal representative control exchanges the required secondary control signal of output so that the output of the second direct current is reverse into; Signal converter, this signal converter are configured to convert FM signal to secondary control signal, and secondary control signal is used to control secondary switching device and exchanges output so that the output of the second direct current is reverse into; And adjuster, this adjuster is configured to use the first direct current of DC power supply to be output as both power supplies of primary and secondary.
Adjuster can be configured to the first direct current output can be adjusted to the output of first order direct current and be used to the power supply of primary control device, and the output of the first direct current can be adjusted to second level direct current output and be used for powering to secondary controller.
Signal converter can comprise transformer, rectifier and filter.
Filter can comprise high pass filter (HPF) and low pass filter (LPF), and each in low pass filter and the high pass filter can be configured to respectively in response to the FM signal with first frequency or second frequency one or more in the activator switch device optionally.
Secondary controller also can be configured to optionally control according to the desired characteristic that exchanges output the output of first frequency and second frequency.Secondary controller also can be configured to export the 3rd frequency, with the secondary switching device of deexcitation optionally, in order to prevent output AC output.
First frequency can be 50kHz, and second frequency can be 150kHz, and the 3rd frequency can be 100kHz.
Signal converter can electrically be connected between secondary controller and the secondary switching device, thereby transformer can electrically be kept apart secondary switching device and primary control device and secondary controller.
Elementary push-pull type transducer, rectifier and the switch of comprising, switch is operable between center tap position and the non-center tap position, rectifier can serve as the center tap rectifier on the center tap position, and rectifier can serve as bridge rectifier on non-center tap position.
The elementary rectifier with four diodes and a switch that comprises, wherein diode can bridge-type dispose to arrange, and switch is operable between center tap position and the non-center tap position, the center tap position can be in quick condition corresponding to the positive pole of two diodes in the diode, but not the center tap position can be connected to corresponding to the positive pole of two diodes in the diode reference ground of H bridge.
The elementary rectifier with a plurality of diodes and a switch that comprises, wherein a plurality of diodes can bridge-type dispose to arrange, and switch is operable between center tap position and the non-center tap position, the center tap position can be in quick condition corresponding to the positive pole of at least first in a plurality of diodes, but not the center tap position can be connected to the transformer end corresponding to the positive pole of at least first in a plurality of diodes.
The present invention also provides a kind of inverter that is used in the vehicles with DC power supply, this inverter comprises: elementary, this is elementary to have switching device, and this switching device can operate in response to primary control signal the first direct current output of DC power supply is boosted to the output of the second direct current; Secondary, this is secondary to have a switching device, and this switching device can operate in response to secondary control signal the output of the second direct current is reverse into and exchange output; The primary control device, this primary control device is configured to export primary control signal; Secondary controller, this secondary controller be configured to export the secondary control signal of representative, frequency exceeds the FM signal of 200Hz; And signal converter, this signal converter is configured to convert FM signal to secondary control signal, and signal converter also is configured to output frequency less than the secondary control signal of 200Hz.
Inverter provided by the invention also can comprise adjuster, and this adjuster can be configured to the output of the first direct current is adjusted to control output, is used for directly to primary control device and the two power supply of secondary controller.Signal converter can be connected between secondary controller and the secondary switching device, and signal converter can comprise transformer, so that secondary switching device and secondary controller are electrically kept apart.
Elementary push-pull type transducer, rectifier and the switch of comprising, switch is operable between center tap position and the non-center tap position, rectifier can serve as the center tap rectifier on the center tap position, and rectifier can serve as bridge rectifier on non-center tap position.
The present invention also provides a kind of inverter that is used in the vehicles with DC power supply, this inverter comprises: elementary, this is elementary to have switching device, switching device optionally operates between the state of being activated and the state that is not activated, boosts to the output of the second direct current with the first direct current output with DC power supply; Secondary, this is secondary to have a switching device, and switching device optionally operates between the state of being activated and the state that is not activated, exchanges output so that the output of the second direct current is reverse into; The primary control device, this primary control device is configured to export primary control signal, primary control signal be used to optionally to make switching device operate in the required state that is activated and the state that is not activated between, boost to the output of the second direct current with the first direct current output with DC power supply; Secondary controller, this secondary controller is configured to export the FM signal of the secondary control signal of representative, between the state that needs secondary control signal optionally to make switching device operate in the required state that is activated and be not activated, so that being reverse into, the output of the second direct current exchanges output; Wherein secondary controller switches the output frequency of FM signal between first frequency, second frequency and the 3rd frequency, with to exchanging output Shaping, first frequency is output during the positive part that exchanges output, second frequency is output during the negative part that exchanges output, and the 3rd frequency is output during the zero crossing between direct circulation and the negative circulation; And signal converter, this signal converter is configured to receive FM signal and converts FM signal to secondary control signal without the seedbed, whether be in first frequency, second frequency and the 3rd frequency according to FM signal, secondary control signal be used to optionally to activate with the secondary switching device of deexcitation in each.
Inverter provided by the invention also can comprise adjuster, and this adjuster can be configured to the output of the first direct current is adjusted to control output, and control output is suitable for to primary control device and the two power supply of secondary controller.Signal converter can be connected between secondary controller and the secondary switching device, and signal converter can comprise transformer, so that secondary switching device and secondary controller are electrically kept apart.
Elementary push-pull type transducer, rectifier and the switch of comprising, switch is operable between center tap position and the non-center tap position, rectifier can serve as the center tap rectifier on the center tap position, and rectifier can serve as bridge rectifier on non-center tap position.
FM signal can be greater than 200Hz, and secondary control signal can be less than 200Hz.
Description of drawings
The present invention points out with the characteristic in the accessory claim.Yet, by together with accompanying drawing with reference to following detailed description, other features of the present invention will become clearer, and the present invention will be understood best, wherein:
Fig. 1 illustrates primary source with isolation and the inverter of secondary power;
A unrestricted aspect during Fig. 2 illustrates according to the present invention is configured to support with the DC power supply inversion to be the inverter of AC power;
Secondary controller and signal converter that a unrestricted aspect during Fig. 3 illustrates according to the present invention is configured; And
A unrestricted aspect during Fig. 4 illustrates according to the present invention is as the AC signal through modified sine wave output.
Embodiment
A unrestricted aspect during Fig. 2 illustrates according to the present invention is configured to support with the DC power supply inversion to be the inverter 10 of AC power.This inverter 10 can be included in the shell 12, to promote that vehicles DC power supply is reverse into the AC power that is well-suited for the consumer-elcetronics devices power supply, described shell 12 is installed in the vehicles (not shown), described vehicles DC power supply is such as but not limited to being provided by vehicles storage battery, and described consumer-elcetronics devices generally is inserted in the family on the wall outlet such as but not limited to those or those 120/230Vac voltages with the 50/60Hz frequency produce drive electronic equipment.The present invention has considered a kind of needs, namely supports the operation of relative low-power consumer device, and described consumer device is in the vehicles that used inverter 10, and this equipment is such as but not limited to the equipment that requires power up to 1kW.
Can be passed to rectifier 22 before secondary outputing to from the boosted interchange output of transformer 20.But rectifier 22 can be switching rectifier, and this is because this rectifier can switch between transformer center tap position 24 and non-center tap position 26 along with the activity of switch 28.In non-center tap position 26, a plurality of diode D1, D2, D3 and the D4 that are arranged with the full wave bridge type configuration can be connected to two ends that transformer 20 is exported, so that the output of rectifier 22 is near 230Vdc.In center tap position 24, only there are diode D1 and D2 to be activated, then under reverse blocking state (quick condition), this causes rectifier 22 to be arranged with the center tap configuration effectively for diode D3 and D4.The center tap configuration reduces by half the all-wave output of rectifier 22, so that there is the voltage of approximate 120Vdc to be provided to secondary 15.
The on-off controller (not shown) can be used for making switch 28 activities between center tap and non-center tap position 24,26.The ability of controlling elementary 14 Voltage-output can be of value to the operational requirements of supporting various electronic equipments.This may also be helpful from the angle made, be used for the vehicles because allowed vehicle manufacturer to buy inverter 10 of the present invention, the described vehicles are sold at US and European, perhaps have other places of similar power supply requirement, and needn't build or support the manufactory of different inverter systems.
Switching the ability that exchanges output can promote by the location with on-off controller (not shown) control switch 128.This on-off controller can be the communication tool system controller, perhaps can be contained among in other controllers of inverter 10.Inverter 10 can comprise primary control device 40 and secondary controller 42, and these controllers and on-off controller as one man operate to promote the inversion considered by the present invention.In more detail, primary and secondary controller 40,42 can be configured to control to primary and secondary 14,15 handover operation, in order to boosting of the direct voltage that provides is provided, with and subsequently inversion export to the interchange of expectation.
Unlike the layout shown in Fig. 1, its middle controller 114,116 is by using switched-mode power supply 128 electrically to be isolated, and this switched-mode power supply 128 is kept apart from 126, and controller of the present invention 40,42 is not electrically isolated.
Although primary and secondary controller 40,42 electrically is coupled, controller 40,42 needs not be identical controller type.For example, primary control device 40 can be configured to according to elementary 14 operation requirements control switch device 16,18, and secondary controller 42 can be configured to support secondary 15 operational requirements in a different manner simultaneously.Primary control device 14 can comprise the signal generator (not shown), and this signal generator is to gate drivers 50 output time varying signals 48.This control signal 48 can be nominal voltage and electric current, otherwise this control signal deficiency is thought gate drivers 50 or switch 16,18 power supplies.Gate drivers 50 can use control signal 48 to coordinate switching device 16,18 activation and deexcitation.And voltage regulator 46 can be configured to provide by gate drivers and the desired power supply of switching device, for example purposes, is shown as 5 or the signal 54 of 12V.
By this way, elementary 14 gate drivers 50 requires power supply and control signal 48,54, in order to promote correct control primary switch device 16,18.Secondary 15 gate drivers 60 requires similar power supply and control signal 62,64 to control secondary 15 switching element T 1, T2, T3, T4.For secondary 15 power supply and control signal 62,64 and secondary 14 power supply and control signal are electrically kept apart, the present invention relies on secondary controller 42 to signal converter 68 output FM signal 66.Then signal converter 68 is without seedbed conversion FM signal 66, to generate by gate drivers 60 desired power supplys and control signal 62,64.Signal converter 68 be configured to secondary gate drivers 60 employed power supplys and control signal 62,64 and elementary grid controller 50 employed similar control signals 48,54 electrically keep apart.
A unrestricted aspect during Fig. 3 illustrates according to the present invention disposes secondary controller 42 and signal converter 68, to promote generation by secondary gate drivers 60 desired power supplys and control signal 62,64.Because expectation is the consumer device power supply with single phase alternating current power supply, so control signal 64 is provided in the time of providing for secondary gate drivers 60, become control signal when this secondary gate drivers can rely on this and optionally control secondary 15 switching element T 1, T2, T3, T4, form the waveform of output.For example purposes, secondary 15 inverter 70 shown in has switch mos field effect transistor T1, T2, T3 and the T4 that disposes to arrange with H type bridge-type.Doing so only is for example purposes, because the present invention considers the use of other inverter configurations all sidedly.
As shown, the sinusoidal wave 72 positive and negative circulations 74,76 that usually are constructed in succession, they are all with zero crossing 78 beginnings and end.The present invention considers to control the frequency with these corresponding FM signal 66 that circulate.Particularly, this frequency can be switched between pointed frequency, and this depends on sinusoidal wave 72 current circulation 74,76,78.For example, during sinusoidal wave 72 direct circulation 74, switch T1 and T4 can be closed and Simultaneous Switching T2 and T3 are disconnected.Subsequently, switch T1, T2, T3 and T4 can be disconnected to promote zero crossing 78 to lead to negative circulation 76, and this negative circulation 76 is closed with switch T2 and T3 and Simultaneous Switching T1 and T4 remain open to begin.
The present invention considers with passive mode control switch device T1, T2, T3 and T4, this is the frequency by the FM signal 66 that change simply from controller 42 to signal converter 68 outputs, for example can be assigned in 50kHz, 100kHz and the 150kHz modulation signal one by each part in 74,76,78 of will circulating.Signal converter 68 can comprise low pass filter 82 and high pass filter 84 filtering FM signal, so that frequency is by corresponding filter the time, associated control signal 64 only is output to switch T1, T2, T3 and T4.By this way, FM signal 66 can be changed to guarantee signal only by with wait to be activated the filter 82,84 relevant with switch T1, T2, T3, the T4 of deexcitation.
Arrange that with shown in Fig. 3 when high pass and low pass filter 82,84 prevented that output is filtered signal 64, switch T1, T2, T3 and T4 were deactivated.Signal converter 68 also comprises signal transformer 86, so that signal converter 68 and secondary controller 42 are electrically kept apart.Because signal transformer 86 is more cheap than employed transformer among the SMPS, this provides desired first and second grade 14,15 electrical isolation in cost-efficient mode.In addition, the relatively low power delivery of carrying out by signal transformer 86 can help size and the cost of further restricting signal transducer 68.
Except signal output, signal converter 68 also comprises power supply output 88, and described signal output is used for distinguishing activator switch T1 and T4 and switch T2 and T3.Power supply output 88 can generate with rectifier part 40, and this rectifier part 40 is configured to make the AC signal at the outlet side of signal transformer 86 to be smoothed to 12V direct current supply.Power supply 88 can provide by gate drivers 60 desired power supplys to promote the switching manipulation of expectation.By this way, signal converter 68 only comprises passive block, converts activation and required power supply and the control signal 62,64 of deexcitation of gate drivers 60 control switch T1, T2, T3 and T4 to self-controller 42 FM signal 66 outputs in future.
As noted above, inverter 10 can comprise switch 28 and switch between 120V and 230V interchange output with promotion.The frequency of this output can be controlled by secondary controller 42, and described secondary controller 42 is optionally adjusted the time cycle that switch T1, T2, T3 and T4 are activated and are not activated.In other words, in order to be 60Hz output with the 50Hz output switching, secondary controller 42 only needs the duration of the positive part in alternate current operation cycle and negative part is made small correction.This can be by carrying out software control to FM signal 66 and not doing any hardware modifications and finish.This allows the present invention to provide AC power to the consumption electronic product at US and European easily.Selectively, can be configured in response to switch 28 be in center tap position 24 or in non-center tap position 26 FM signal to be set automatically to secondary controller 42.
Support as top, along with growing for the demand that reduces cost, the automaker may have to for different systems, for example the system of 120Vac and 230Vac unifies their design, and the design that minimizes them is with cost that reduce to design, that make and assembly.Configurable Uniting for 120Vac and 230Vac system has been described in the unrestricted aspect of among the present invention at least one.The present invention has also described the inverter control method of simplifying, and the method does not require the isolated switched-mode power supply that is useful on its circuit control device.By the enough any actual device of configuration energy that the present invention considers, for example wire jumper and mechanical switch are realized.Switch by in the general output wire jumper case shown in Fig. 2 that turns left is configured to 120Vac with output.Similarly, by the switch that turns right, output is configured to 230Vac.When output was configured to 120Vac, two diode D3 and D4 were not loaded.The size of dc bus capacitor (DC link capacitor) C can be decided to be 250V.Inverter switching device T1, T4 can be specified 250V.If output is configured in 230Vac, then two diode D3 and D4 will be loaded.Then dc bus capacitor and inverter switching device can be specified 350V.
Based on cutting down isolated switched-mode power supply by the desired electric weight of inverter gates drive circuit.Because inverter switches at 50Hz/60Hz.Institute's electric power that requires is very little.Can Application standard gate driving pulse transformer.This pulse transformer can be carried out two functions-power supply is provided and transmits grid driving switch signal with the form of FM signal for gate driver circuit.As noted, frequency modulation (FM) impulse generator can be used for generating switching signal with the grid of control H type bridge-type inverter switching device.The FM signal can be designed to, and when not having desired switching signal, impulse generator generates the pulse of 100kHz.When the switching signal that requires for T1 and T4, maker generates the pulse of 50kHz.150kHz is generated for T2 and T3.In the output of pulse transformer, along with the existence of switching signal whether, can obtain the voltage through the 12Vdc of rectification.The output of low pass filter (LPF) is provided for the signal of switch T1 and T4.The output of high pass filter (HPF) is provided for the signal of switch T2 and T3.The phase-delay difference for the command signal in the frequency modulation on pulse maker in H type bridge controller compensates between two filters because the former thereby phase delay that occur of filter can or reduce by increase.In case but grid drives power supply and signal time spent, the topological structure of the enough any existence of realization energy that H type bridge-type grid drives is realized.
Although the present invention disclosed herein that be required with detailed execution mode; Yet it being understood that disclosed execution mode only is example of the present invention, and the present invention can be various multi-form or optional form implement.Accompanying drawing needn't be drawn in proportion, and some features may be exaggerated or dwindle to show the details of particular components.Therefore, ad hoc structure disclosed herein and details function be not as restrictive explanation, and as just the representative basis that is used for claim, and/or as using variously representative basis of the present invention for the instruction those of skill in the art.The feature that various execution mode is realized can be combined to form other execution modes of the present invention.
Although embodiments of the present invention are shown and described, have no intention to illustrate and describe all possible forms of the present invention with these execution modes.On the contrary, employed word is descriptive word rather than restrictive in the specification, and it being understood that can make various change in the situation that does not depart from spirit and scope of the invention.
Claims (20)
1. inverter that is used in the vehicles with DC power supply, described inverter comprises:
Elementary, this is elementary to have and can operate the switching device that the first direct current output of described DC power supply is boosted to the output of the second direct current in response to primary control signal;
Secondary, this is secondary to have can operate in response to secondary control signal will described the second direct current output to be reverse into and exchanges the switching device of exporting;
The primary control device, this primary control device is configured to export described primary control signal, and described primary control signal is used to control described elementary switching device so that described the first direct current output is boosted to described the second direct current output;
Secondary controller, this secondary controller is configured to export FM signal, and the described secondary switching device of this FM signal representative control is to be reverse into described the second direct current output the required described secondary control signal of described interchange output;
Signal converter, this signal converter are configured to convert described FM signal to described secondary control signal, and described secondary control signal is used to control described secondary switching device so that described the second direct current output is reverse into described interchange output; And
Adjuster, this adjuster are configured to use described first direct current of described DC power supply to be output as described elementary and described secondary both power supplies.
2. inverter as claimed in claim 1, wherein said adjuster is configured to that the output of described the first direct current is adjusted to the output of first order direct current and is used to described primary control device power supply, and will described the first direct current output be adjusted to second level direct current output and be used for powering to described secondary controller.
3. inverter as claimed in claim 1, wherein said signal converter comprises transformer, rectifier and filter.
4. inverter as claimed in claim 3, wherein said filter comprises high pass filter (HPF) and low pass filter (LPF), and each in described low pass filter and the described high pass filter is configured to respectively optionally to activate in response to the described FM signal with first frequency or second frequency one or more in the described secondary switching device.
5. inverter as claimed in claim 4, wherein said secondary controller also are configured to optionally control according to the desired characteristic of described interchange output the output of described first frequency and described second frequency.
6. inverter as claimed in claim 5, wherein said secondary controller also is configured to export the 3rd frequency, with the described secondary switching device of deexcitation optionally, in order to prevent from exporting described interchange output.
7. inverter as claimed in claim 6, wherein said first frequency is 50kHz, described second frequency is 150kHz, and described the 3rd frequency is 100kHz.
8. inverter as claimed in claim 3, wherein said signal converter electrically is connected between described secondary controller and the described secondary switching device, thereby described transformer is electrically kept apart described secondary switching device and described primary control device and described secondary controller.
9. inverter as claimed in claim 1, wherein said elementary push-pull type transducer, rectifier and the first switch of comprising, described the first switch is operable between center tap position and the non-center tap position, the above rectifier serves as the center tap rectifier in described center tap position, and the above rectifier serves as bridge rectifier in described non-center tap position.
10. inverter as claimed in claim 1, the wherein said elementary rectifier with four diodes and one first switch that comprises, wherein said diode disposes to arrange with bridge-type, and described the first switch is operable between center tap position and the non-center tap position, described center tap position is in quick condition corresponding to the positive pole of two diodes in the described diode, and described non-center tap position is connected to the reference ground of H bridge corresponding to the positive pole of described two diodes in the described diode.
11. inverter as claimed in claim 1, the wherein said elementary rectifier with a plurality of diodes and one first switch that comprises, wherein said a plurality of diode disposes to arrange with bridge-type, and described the first switch is operable between center tap position and the non-center tap position, described center tap position is in quick condition corresponding to the positive pole of at least first in described a plurality of diodes, and described non-center tap position is connected to the transformer end corresponding to the positive pole of the described at least first in described a plurality of diodes.
12. an inverter that is used in the vehicles with DC power supply, described inverter comprises:
Elementary, this is elementary to have and can operate the switching device that the first direct current output of described DC power supply is boosted to the output of the second direct current in response to primary control signal;
Secondary, this is secondary to have can operate in response to secondary control signal will described the second direct current output to be reverse into and exchanges the switching device of exporting;
The primary control device, this primary control device is configured to export described primary control signal;
Secondary controller, this secondary controller be configured to export the described secondary control signal of representative, frequency exceeds the FM signal of 200Hz; And
Signal converter, this signal converter are configured to convert described FM signal to described secondary control signal, and described signal converter also is configured to output frequency less than the described secondary control signal of 200Hz.
13. inverter as claimed in claim 12, this inverter also comprises adjuster, and described adjuster is configured to described the first direct current output is adjusted to control output, is used for directly to described primary control device and the two power supply of described secondary controller.
14. inverter as claimed in claim 13, wherein said signal converter is connected between described secondary controller and the described secondary switching device, and described signal converter comprises transformer, so that described secondary switching device and described secondary controller are electrically kept apart.
15. inverter as claimed in claim 12, wherein said elementary push-pull type transducer, rectifier and the first switch of comprising, described the first switch is operable between center tap position and the non-center tap position, the above rectifier serves as the center tap rectifier in described center tap position, and the above rectifier serves as bridge rectifier in described non-center tap position.
16. an inverter that is used in the vehicles with DC power supply, described inverter comprises:
Elementary, this is elementary to has optionally between the state of being activated and the state that is not activated operation the first direct current output of described DC power supply is boosted to the switching device of the second direct current output;
Secondary, this is secondary to has optionally between the state of being activated and the state that is not activated operation and exchanges the switching device of exporting will described the second direct current output to be reverse into;
The primary control device, this primary control device is configured to export primary control signal, described primary control signal be used to optionally to make described elementary switching device operate in the required state that is activated and the state that is not activated between, boost to described the second direct current output with described the first direct current output with described DC power supply;
Secondary controller, this secondary controller is configured to export the FM signal of the secondary control signal of representative, between the state that needs described secondary control signal optionally to make described secondary switching device operate in the required state that is activated and be not activated, so that described the second direct current output is reverse into described interchange output;
Wherein said secondary controller switches the output frequency of described FM signal between first frequency, second frequency and the 3rd frequency, with to described interchange output Shaping, described first frequency is output during the positive part of described interchange output, described second frequency is output during the negative part of described interchange output, and described the 3rd frequency is output during the zero crossing between direct circulation and the negative circulation; And
Signal converter, this signal converter is configured to receive described FM signal and converts described FM signal to described secondary control signal without the seedbed, whether be in described first frequency, described second frequency and described the 3rd frequency according to described FM signal, described secondary control signal be used to optionally to activate with the described secondary switching device of deexcitation in each.
17. inverter as claimed in claim 16, this inverter also comprises adjuster, described adjuster is configured to described the first direct current output is adjusted to control output, and described control output is suitable for to described primary control device and the two power supply of described secondary controller.
18. inverter as claimed in claim 17, wherein said signal converter is connected between described secondary controller and the described secondary switching device, and described signal converter comprises transformer, so that described secondary switching device and described secondary controller are electrically kept apart.
19. inverter as claimed in claim 16, wherein said elementary push-pull type transducer, rectifier and the first switch of comprising, described the first switch is operable between center tap position and the non-center tap position, the above rectifier serves as the center tap rectifier in described center tap position, and the above rectifier serves as bridge rectifier in described non-center tap position.
20. inverter as claimed in claim 16, wherein said FM signal are greater than 200Hz, and described secondary control signal is less than 200Hz.
Applications Claiming Priority (2)
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|---|---|---|---|
| US12/420,231 | 2009-04-08 | ||
| US12/420,231 US8085565B2 (en) | 2009-04-08 | 2009-04-08 | Vehicle inverter for powering consumer electronic devices |
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| Publication Number | Publication Date |
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| CN101860254A CN101860254A (en) | 2010-10-13 |
| CN101860254B true CN101860254B (en) | 2013-10-23 |
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| CN2010101389911A Expired - Fee Related CN101860254B (en) | 2009-04-08 | 2010-03-19 | Vehicle inverter for powering consumer electronic devices |
Country Status (3)
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| US (1) | US8085565B2 (en) |
| CN (1) | CN101860254B (en) |
| DE (1) | DE102010001770A1 (en) |
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| CN103762873B (en) * | 2014-01-24 | 2016-04-20 | 南京理工大学 | Based on the high frequency isolation type three-level inverter of Boost |
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Also Published As
| Publication number | Publication date |
|---|---|
| US8085565B2 (en) | 2011-12-27 |
| US20100259098A1 (en) | 2010-10-14 |
| CN101860254A (en) | 2010-10-13 |
| DE102010001770A1 (en) | 2010-11-11 |
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